From patchwork Sat Feb 19 10:42:27 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Santosh Shilimkar X-Patchwork-Id: 574521 X-Patchwork-Delegate: khilman@deeprootsystems.com Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter1.kernel.org (8.14.4/8.14.3) with ESMTP id p1JAguIY032649 for ; Sat, 19 Feb 2011 10:42:58 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753800Ab1BSKmt (ORCPT ); Sat, 19 Feb 2011 05:42:49 -0500 Received: from arroyo.ext.ti.com ([192.94.94.40]:34187 "EHLO arroyo.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753027Ab1BSKms (ORCPT ); Sat, 19 Feb 2011 05:42:48 -0500 Received: from dbdp31.itg.ti.com ([172.24.170.98]) by arroyo.ext.ti.com (8.13.7/8.13.7) with ESMTP id p1JAgg0i028188 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Sat, 19 Feb 2011 04:42:44 -0600 Received: from linfarm476.india.ti.com (localhost [127.0.0.1]) by dbdp31.itg.ti.com (8.13.8/8.13.8) with ESMTP id p1JAgfIU013931; Sat, 19 Feb 2011 16:12:41 +0530 (IST) Received: from linfarm476.india.ti.com (localhost [127.0.0.1]) by linfarm476.india.ti.com (8.12.11/8.12.11) with ESMTP id p1JAgenO028576; Sat, 19 Feb 2011 16:12:40 +0530 Received: (from a0393909@localhost) by linfarm476.india.ti.com (8.12.11/8.12.11/Submit) id p1JAgeUk028573; Sat, 19 Feb 2011 16:12:40 +0530 From: Santosh Shilimkar To: linux-omap@vger.kernel.org Cc: khilman@ti.com, linux-arm-kernel@lists.infradead.org, Santosh Shilimkar Subject: [PATCH 06/17] omap4: pm: Program CPU1 to hit OFF when off-lined Date: Sat, 19 Feb 2011 16:12:27 +0530 Message-Id: <1298112158-28469-7-git-send-email-santosh.shilimkar@ti.com> X-Mailer: git-send-email 1.5.6.6 In-Reply-To: <1298112158-28469-1-git-send-email-santosh.shilimkar@ti.com> References: <1298112158-28469-1-git-send-email-santosh.shilimkar@ti.com> Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.6 (demeter1.kernel.org [140.211.167.41]); Sat, 19 Feb 2011 10:42:58 +0000 (UTC) diff --git a/arch/arm/mach-omap2/omap-hotplug.c b/arch/arm/mach-omap2/omap-hotplug.c index 4976b93..9f8f097 100644 --- a/arch/arm/mach-omap2/omap-hotplug.c +++ b/arch/arm/mach-omap2/omap-hotplug.c @@ -20,6 +20,9 @@ #include #include +#include + +#include "powerdomain.h" int platform_cpu_kill(unsigned int cpu) { @@ -32,6 +35,8 @@ int platform_cpu_kill(unsigned int cpu) */ void platform_cpu_die(unsigned int cpu) { + unsigned int this_cpu; + flush_cache_all(); dsb(); @@ -39,18 +44,21 @@ void platform_cpu_die(unsigned int cpu) * we're ready for shutdown now, so do it */ if (omap_modify_auxcoreboot0(0x0, 0x200) != 0x0) - printk(KERN_CRIT "Secure clear status failed\n"); + pr_err("Secure clear status failed\n"); for (;;) { /* - * Execute WFI + * Enter into low power state + * clear all interrupt wakeup sources */ - do_wfi(); - - if (omap_read_auxcoreboot0() == cpu) { + omap_wakeupgen_irqmask_all(cpu, 1); + omap4_enter_lowpower(cpu, PWRDM_POWER_OFF); + this_cpu = hard_smp_processor_id(); + if (omap_read_auxcoreboot0() == this_cpu) { /* * OK, proper wakeup, we're done */ + omap_wakeupgen_irqmask_all(this_cpu, 0); break; } pr_debug("CPU%u: spurious wakeup call\n", cpu);